Transparent Pricing
Simple, scalable pricing for email infrastructure
Google Workspace and Microsoft 365 mailboxes from $2.50/mo on annual billing ($3.00 monthly). No plans, no slots, no setup fees. Automated DNS, admin access, and 24+ integrations included with every mailbox.
Not sure how many mailboxes you need? Use the email cost calculator to size mailboxes, domains, and monthly cost from your send volume or meetings goal.
Simple pricing
that scales without commitment
One price per mailbox, paid from your wallet. No plans, no slots, no minimum.
Google mailbox
$2.50/mailbox/mo
US-IP Google Workspace mailboxes on your own domains.
Microsoft mailbox
$2.50/mailbox/mo
Microsoft 365 mailboxes, same price and features.
Azure tenant
$30.00/tenant/mo
Up to 100 mailboxes per tenant. Same price on every cycle.
Every mailbox includes
- Official admin panel (1 per domain) with 2FA
- Real-time monitoring & alerts
- 24+ platform integrations
- Unlimited team members & workspaces
- Full API access with webhooks
- Email & chat support
Add-ons
Billed yearly from your wallet. Top up your wallet at any time; mailboxes are charged on their own renewal date.
Everything included in every plan
No hidden fees or surprise charges. Every InboxKit plan comes with the full set of tools you need to run email infrastructure at scale.
Automated DNS Setup
SPF, DKIM, and DMARC configured automatically for every domain in seconds.
Official Admin Panel
Full admin access to Google Workspace or Microsoft 365 with 2FA security per domain.
App Passwords & 2FA
Auto-generated app passwords for seamless integration with any SMTP-compatible sequencer.
REST API & Webhooks
Full API access for programmatic mailbox and domain management with real-time webhook events.
24+ Integrations
Connect to Instantly, SmartLead, Apollo, Reply, Lemlist, SalesForge, Plusvibe, and more.
Real-Time Monitoring
Live deliverability alerts, bounce tracking, and domain health monitoring across all mailboxes.
Unlimited Team Members
Add unlimited team members and organize mailboxes across multiple workspaces at no extra cost.
US-IP Addresses
All Google Workspace and Microsoft 365 accounts provisioned on premium US IP infrastructure.
How InboxKit pricing compares
See how InboxKit stacks up against other email infrastructure providers on pricing, features, and infrastructure quality.
| Provider | GWS Price | MS365 Price | Admin Access | DNS Automation | Warmup | Integrations | US IPs |
|---|---|---|---|---|---|---|---|
| InboxKit | $3.00 / $2.50 annual | $3.00 / $2.50 annual | $3/mo add-on | 24+ | |||
| Mailforge | ~$3.00 | N/A | Built-in | Limited | |||
| Primeforge | From $2.88 | From $2.88 | Built-in | Limited | |||
| Zapmail | ~$2.67 | ~$3.00 | Built-in | Limited |
Pricing based on publicly available data as of 2026. Competitor prices may vary.
Pricing FAQ
Common questions about InboxKit plans, billing, and what is included.
InboxKit charges one flat rate per mailbox with no plans and no included slots: $3.00/mailbox/month on monthly billing, $2.70 on quarterly, and $2.50 on annual. Ten mailboxes cost ten times the rate; there is no base fee to clear first. Google Workspace and Microsoft 365 are the same price — there is no Microsoft premium. Azure is billed per tenant at $30/month for up to 100 mailboxes. Every mailbox includes automated DNS setup, official admin panel access with 2FA, app passwords, and 24+ sequencer integrations.
InboxKit does not offer a traditional free trial, but there is no minimum and no plan to commit to, so you can start with a single mailbox for $3.00/month and scale from there. The first month of InfraGuard monitoring is free, which is enough to evaluate deliverability, DNS automation, and integrations before you add volume.
InboxKit accepts all major credit cards (Visa, Mastercard, American Express). You top up a wallet and each mailbox is charged from it on its own renewal date. For agencies and enterprises managing large mailbox volumes, we also offer volume invoicing with NET-30 terms. Contact our sales team for custom billing arrangements.
The rate is the same at every volume — one mailbox and five hundred mailboxes are both $3.00/month, so there is no tier to climb. The discount comes from the billing cycle instead: $2.70 on quarterly and $2.50 on annual, the lowest rate available. For very large deployments, contact our team for custom pricing with dedicated support and SLA guarantees.
Every mailbox includes automated DNS configuration (SPF, DKIM, DMARC), an official admin panel with 2FA for each domain, app password generation, full REST API access with webhooks, unlimited team members and workspaces, real-time monitoring and alerts, and integration with 24+ sequencers including Instantly, SmartLead, Apollo, and more.
InboxKit is competitively priced among email infrastructure providers. Mailforge charges around $3/mailbox/month but uses shared infrastructure without admin access. Primeforge starts at $2.88/mailbox/month with limited integrations. Zapmail charges $2.67-3/mailbox/month. InboxKit is $3.00/mailbox/month monthly and $2.50 on annual billing, for official Google Workspace and Microsoft 365 accounts with full admin control, US-IP addresses, and 95% inbox placement.
Yes. You can switch your billing period at any time. Moving from monthly to quarterly takes the rate from $3.00 to $2.70 (10% off), and annual takes it to $2.50 (17% off). Changes take effect at the start of your next billing cycle, and any credit from your current period is applied automatically.
Ready to get started?
Launch your email infrastructure today
Google Workspace from $2.50/mo. Automated DNS, InfraGuard monitoring, and 24+ sequencer integrations included. Set up your first mailboxes in under 10 minutes.